upon them. No. 3. Size 1.54 x 2.00. Ground-color yellowish-tinted. No deep shell-marks. The pointed 
third of the egg is completely covered by a wash of yellowish-brown. At the base the ground-color is 
plainly visible between fine speckles which become thicker and thicker as the . middle of the egg is 
approached until finally they merge into the solid wash of color mentioned. No. 4. Size, 1.52 x 1.98. 
Ground-color faintly yellowish tinted. No deep shell-marks. Surface marks consist of a few blotches of 
light yellowish-brown distributed irregularly over the egg. 
DIFFERENTIAL POINTS: 
The nests of all the large Hawks which build in trees are very similar. They are so difficult to 
obtain in perfect condition and so large, that but little interest is attached to them other than their 
location, position, and in a general way their materials of construction. The following species of Hawks 
breed in Ohio: Red-tailed Hawk, Fish Hawk, Red-shouldered Hawk, Broad- winged Hawk, Cooper’s 
Hawk, Marsh Hawk, Sharp-shinned Hawk, and Sparrow Hawk. The eggs of these eight Hawks vary 
in size in the order named. The most highly-colored eggs of the lot are the Fish Hawk’s. The Red- 
tailed Hawk’s are the largest, but the Fish Hawk’s approach them very closely in size. The third in 
size, and quite similar to the Red-tailed Hawk’s in markings are the eggs of the Red-shouldred Hawk. 
The chief point of difference is that of size, this is usually sufficient to differentiate them. The next in size 
are those of the Broad-winged Hawk, they are about as much smaller than the Red-shouldered Hawk’s 
as the Red-shouldered Hawk’s are smaller than the Red-tailed Hawk’s. This difference together with 
the difference in the color of the markings will usually enable one to distinguish them. Except the 
eggs of the Fish Hawk, those of the Sharp-shinned Hawk and Sparrow Hawk are the most heavily 
marked. Their size is much less than any of the others. See “Differential Points” under “Sharp- 
shinned Hawk.” The faintest marked eggs are those of the Cooper’s Hawk and the Marsh Hawk. The 
latter are a little the smaller and the ground-color is a little fainter, but they are so nearly alike that 
any but typical specimens can not be positively identified by size, color, and markings alone. 
REMARKS : 
The three eggs illustrated, Fig. 2, Plate LIS, were selected for me by Mr. Jenks of Providence, R. I., 
from a number of sets, as I was unable to obtain eggs of this species taken in Ohio, although it is cer- 
tain that the birds breed here. Dr. J. M. Wheaton states that Mr. W. M. Wilson of Yellow Springs, 
Ohio, took a nest and four eggs of this Hawk, and there are other records of its breeding equally relia- 
ble. Mr. Alexander Wilson killed but a single specimen of the Broad- winged Hawk, and Mr. Nuttall 
never saw it. Mr. Audubon frequently observed it and found its nest and eggs. His account of the 
female, from which he made the drawing for his great work, is certainly remarkable. He discovered her 
upon her nest, and his brother-in-law climbed the tree, threw his handkerchief over her and carried her 
to the ground. The bird was then taken to the house and placed upon a stick, where she sat motionless 
during the time Mr. Audubon was drawing her portrait, and even suffered herself to be stroked and 
accurately measured with compasses without showing any irritation. The Hawk was finally tossed out 
of the window, when she at once made off to the woods. Accordingly Mr. Audubon characterized the 
species as inactive and wanting courage, which was certainly the case in this instance. 
According to “ North American Birds ” Mr. Boardman has found the Broad-winged Hawk one of the 
most courageous and spirited of its family. On one occasion when a man, employed by him, was ascend- 
ing to a nest, a parent bird assailed the disturber with great fury, tore his cap from his head, and would 
have done the man serious injury had it not been shot. 
In another instance one of these birds attacked a boy climbing to its nest, and fastened its talons in 
his arm, and could not be removed until it was beaten off and killed with a club. 
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